Question

find the average of 4.2,3.9 and 7.5​

Answer 1

Average of 4.2 , 3.9 and 7.5

$average = \frac{4.2 + 3.9 + 7.5}{3} \\ \\ average = \frac{15.6}{3} \\ \\ average = 5.2$

Answer 2

Answer:

Average=(4.2+3.9+7.5)/3

=1/3×(4.2+3.9+7.5)

=15.6/3

=5.2